Screen pipe



Aug; 20, 1929. i L 1,725,321

SCREEN PIPE Filed July 19, 1927 Mfg/Toe Patented Aug. 20, 1929.

UNITED STATES MILON J'. TRUMBLE, OF ALHAMBRA, CALIFORNIA.

SCREEN PIPE.

Application filed July 19,

My invention relates to the art of oil production from wells, being more particularly a form of screen pipe used in wells for the screening of the oil and other fluid entering the pipe or easing from the formation. Various forms of screens have been used for this purpose, such as slots made in the pipe itself, but my invention relates particularly to the class of screens in which buttons or disks are set into apertures in the pipe, and one of the principal objects of my invention is to produce a screen pipe of the class (.escribed, of simple .form and construction, and which may be cheaply manufactured to compete with the cheaper forms of screen pipe, such as referred to above as slotted pi e.

Other objects and advantages will appear hereinafter from the following description and drawings.

Referring to the drawings, which are for illustrative purposes only,

Figure 1 is a section of pipe or casing made in accordance with my invention.

Fig. 2 is an enlarged vertical sectional view of a portion of the pipe shown in Fig. 1, showing the pipe prior to the setting of a button or disk therein.

Fig. 3 is a view similar to Fig. 2, showing the button or disk seated therein.

Fig. 1- is a view similar to Figs. 2 and 3, showing the finished product.

Fig. 5 is an enlarged face view of one of the button units.

Fig. 6 is a face View of one of the disks or blanks, and

Fig. '7 is an enlarged sectional view similar to Fig. 1-, showing a modified form in which two buttons are used.

More particularly describing the embodiment of my invention shown in the drawings, 11 designates a section of pipe or well casing having a plurality of button units 12 therein, it being understood that said units may be conveniently placed and positioned therein as may be required to meet the service required. The pipe 11 is prepared for the buttons by forming holes 13 therein by any suitable tool. The walls of such holes 13 form a circular outwardly extending seat 14: surrounded by a circular flange 15 and an enlarging opening 16 forming an annular channel in the outer surface of the pipe.

After the opening in the pipe is formed,

1927. Serial No. 206,878.

as above described, a butt-0n or disk 17 is placed on the seat 14, as shown in Fig. 2, and the flange 15 turned or spinned over the edge of the button, as shown in Fig. 1.

These buttons or disks are provided with any desired shape of screening openings, the form shown consisting of a plurality of slots 19 which, according to the character of the fluid in the well, may be either wider or narrower than the slots shown.

It is to be understood that the buttons or disks 17 may be made of metal having characteristics of such wearing quality as to stand up under protracted use without wearing due to sand or other abrasive material which may be in the fluid.

By setting the buttons in the pipe as above described, the buttons are securely held in place, there being no danger of loss of buttons and consequent impairment of the screening functions of the pipe.

In the form shown in Fig. 7 two disks 17 are arranged with the slots 19 therein arranged at right angles, thereby reducing the screening capacity of the button units.

What I claim is:

1. A screen pipe comprising: a pipe section having a plurality of holes therethrough, the walls of each hole having formed therein a shoulder an outwardly extending flange surrounding said shoulder and a channel surrounding said flange; and a screen member seated on said shoulder. said flange being turned over the edge of said screen member.

2. A screen pipe comprising: a pipe section having a plurality of holes therethrough, the walls of each hole having formed therein a shoulder, a channel surrounding said shoulder and flange between said shoulder and said channel; and an apertured disk seated on said shoulder, said flange being turned over the edge of said disk.

3. A screen pipe comprising: a section of pipe having a shouldered opening therein of lesser diameter on the inside than the outside of said pipe; an apertured disk seated on said shouldered portion of said opening and an outwardly extending flange forming a wall surrounding said opening, and adapted to be bent inwardly over the edge of said disk.

1. A screen pipe comprising: a pipe section having a plurality of circular openings therethrough, each opening having an anshoulders, circuinferencially engaging the nular shoulder in the circumference thereinner face of said flange, said flange being of; an annular flange adjacent said shoulder turned over the edge of said disks. 20 extending" outwardly in a direction parallel In testimony whereof, I have hereunto set 5 to the axis of said hole and an annular my hand at Los Angeles, California, this groove circumsoribing said flange; and aper- 11th day of July, 1927. tured disks mounted in said openings on said MILON J. TRUMBLE. 

